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Method and apparatus for displaying three-dimensional images
| Details |
Inventors: Balogh, Tibor;
Assignee: Holografica (Budapest, HU); Sony International (Europe) GmbH (Koln-Ossendorf, DE)
Primary Examiner: Le; Vu
Assistant Examiner:
Attorney, Agent or Firm: Frommer Lawrence & Haug, LLP, Frommer; William S.
The method and apparatus of the invention pertains to a simultaneously modulated light beam carrying the information of a three-dimensional image is directed to pixels (image points) defining a first light emitting surface, a component of the light beam is emitted from the pixels within a predetermined angle of view (field of view) in the different view directions, with an intensity corresponding to the three-dimensional image, the modulated light beams are directed to the pixels from different entry angles, depending on the emitting angles within the angle of view, wherein the light beams modulated corresponding to the different directions are directed to the pixels of the first light emitting surface from one or more light emitting points of a second light emitting surface, the second light emitting surface being spaced apart with a predetermined distance from the first light emitting surface. |
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DETAILED DESCRIPTION What is claimed is: 1.
A method for producing a three-dimensional image, comprising the steps of: simultaneously modulating a--preferably spatially coherent--light beam by a video signal containing three-dimensional image information; and directing the modulated light beam to pixels (image points) defining a first light emitting surface; emitting a component of the light beam from the pixels within a predetermined angle of view (field of view) in the different view directions, with an intensity corresponding to the three-dimensional image, directing the modulated light beams to the pixels from different entry angles, depending on the emitting angles within the angle of view, characterised by directing the light beams modulated corresponding to the different directions to the pixels of the first light emitting surface from one or more light emitting points of a second light emitting surface, said second light emitting surface being spaced apart with a predetermined distance from the first light emitting surface.
2.
A method according to claim 1, characterised by selecting the number of the light emitting points and the number of light beams (the angle resolution) emitted therefrom such, that their product is equal to the product of the number of pixels and the number of directions (the angle resolution) into which light beams are emitted from the pixels.
3.
A method according to claim 2, characterised by simultaneously modulating the light beams emitted in the same direction from the pixels and associated with different pixels with light information associated with the same direction, and modulating the light beams of the light emitting points corresponding to the different emitting directions of the same pixel with the light information corresponding to the different view directions of the same pixel.
4.
A method according to claim 2, characterised by electing the light emitting angle of the light emitting points of the second light emitting surface equal to the view angle (field of view) of the pixels of the first light emitting surface
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Optical Systems 
